#include "stations.h" #include <vector> using namespace std; vector<int> visit(1000, 0); vector<int> edge[1000]; vector<int> L; int dfs(int u, int a, bool flag) { visit[u] = 1; if(flag == 0) { L[u] = a; a++; } for(int v: edge[u]) { if(visit[v]) continue; a = dfs(v, a, !flag); } if(flag == 1) { L[u] = a; a++; } return a; } vector<int> label(int n, int k, vector<int> u, vector<int> v) { for(int i = 0; i < n-1; i++) { edge[u[i]].push_back(v[i]); edge[v[i]].push_back(u[i]); } L = vector<int>(n, -1); dfs(0, 0, 0); return L; }

/tmp/ccKIQhsb.o: In function `main':
stub.cpp:(.text.startup+0x4bc): undefined reference to `find_next_station(int, int, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status